KMS of Xinjiang Astronomical Observatory, CAS
| Gas emission and dynamics in the infrared dark cloud G31.23+0.05 | |
| Liu, Xiao-Lan1,2; Wang, Jun-Jie1,2; Xu, Jin-Long1,2; Zhang, Chuan-Peng1,2 | |
| 2017-03-01 | |
| Source Publication | Research in Astronomy and Astrophysics
 |
| ISSN | 1674-4527 |
| Volume | 17Issue:4Pages:35 |
| Abstract | We performed a multiwavelength study towards the infrared dark cloud (IRDC) G31.23+0.05 with new CO observations from Purple Mountain Observatory and archival data (the GLIMPSE, MIPSGAL, HERSCHEL, ATLASGAL, BGPS and NVSS surveys). From these observations, we identified three IRDCs with systemic velocities of 108.36 +/- 0.06 (cloud A), 104.22 +/- 0.11 (cloud B) and 75.73 +/- 0.07 km s(-1) (cloud C) in the line of sight towards IRDC G31.23. Analyses of the molecular and dust emission suggest that cloud A is a filamentary structure containing a young stellar object; clouds B and C both include a starless core. Clouds A and B are gravitationally bound and have a chance to form stars. In addition, the velocity information and the position-velocity diagram suggest that clouds A and B are adjacent in space and provide a clue hinting at a possible cloud-cloud collision. Additionally, the distribution of dust temperature shows a temperature bubble. The compact core in cloud A is associated with an UCHII region, an IRAS source, H2O masers, CH3OH masers and OH masers, suggesting that massive star formation is active there. We estimate the age of the HII region to be (0.03-0.09) Myr, indicating that the star inside is young. |
| Correspondent Email | liuxiaolan@bao.ac.cn |
| Keyword | Stars: Formation Ism: Hii Regions Ism: Molecules Ism: Individual (Irdc g31.23+0.05) Ism: Kinematics And Dynamics |
| Subtype | Article |
| DOI | 10.1088/1674-4527/17/4/35 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | massive star-formation ; h-ii regions ; forming regions ; galactic plane ; physical-properties ; methanol masers ; h2o masers ; cores ; kinematics ; herschel |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000399221400005 |
| Project Number | 2015CB857100 ; 11403052 ; 11363004 ; 11403042 |
| Funding Organization | Key Laboratory for Radio Astronomy, CAS ; National Key Basic Research Program of China ; National Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1606 |
| Collection | 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题1：大样本射电天体的观测和前沿问题研究 |
| Corresponding Author | Liu, Xiao-Lan |
| Affiliation | 1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2.NAOC-TU Joint Center for Astrophysics, Lhasa 850000, China |
| Recommended Citation GB/T 7714 | Liu, Xiao-Lan,Wang, Jun-Jie,Xu, Jin-Long,et al. Gas emission and dynamics in the infrared dark cloud G31.23+0.05[J]. Research in Astronomy and Astrophysics,2017,17(4):35. |
| APA | Liu, Xiao-Lan,Wang, Jun-Jie,Xu, Jin-Long,&Zhang, Chuan-Peng.(2017).Gas emission and dynamics in the infrared dark cloud G31.23+0.05.Research in Astronomy and Astrophysics,17(4),35. |
| MLA | Liu, Xiao-Lan,et al."Gas emission and dynamics in the infrared dark cloud G31.23+0.05".Research in Astronomy and Astrophysics 17.4(2017):35. |
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| File Name/Size | DocType | Version | Access | License | ||
| Liu_2017_Res._Astron（1776KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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